Background and purpose Percutaneous transfemoral arterial procedures rely on a variety of vascular closure methods. We studied closure success and complications after using the Mynx vascular closure device in cerebral neurovascular procedures.
Methods We prospectively analyzed patients undergoing diagnostic cerebral angiogram or neurointervention with arteriotomy closure using the Mynx device. Patient demographics and procedural factors were recorded. Statistical analyses compared groups and identified predictors of device failure and complication.
Results A total of 766 patients, 59% women, mean age 55.5 years (SD 14.2), mean body mass index (BMI) 29.1 kg/m2 (SD 7.4), underwent 937 neurovascular procedures in a 10 month period. Device success was achieved in 92% of patients; lower BMI, higher number of antithrombotic medications, larger sheath size, and performance of a neurointerventional procedure predicted Mynx failure. Complications occurred in 2.45% of procedures, with older age, lower BMI, higher number of antithrombotic medicines used, higher international normalized ratio, lower platelet count, and Mynx device failure conferring an increased risk of complication.
Conclusions The Mynx device is safe and effective for cerebral neurovascular procedures. However, specific patient populations may warrant particular attention and thorough consideration of risks and benefits prior to employing the Mynx device for femoral arteriotomy closure.
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